4100123 has 4 divisors (see below), whose sum is σ = 4200168. Its totient is φ = 4000080.

The previous prime is 4100099. The next prime is 4100137. The reversal of 4100123 is 3210014.

It is a happy number.

4100123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4100123 - 2⁸ = 4099867 is a prime.

It is a super-2 number, since 2×4100123² = 33622017230258, which contains 22 as substring.

It is a Duffinian number.

4100123 is a modest number, since divided by 123 gives 41 as remainder.

It is not an unprimeable number, because it can be changed into a prime (4100023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49961 + ... + 50042.

It is an arithmetic number, because the mean of its divisors is an integer number (1050042).

Almost surely, 2^4100123 is an apocalyptic number.

4100123 is a deficient number, since it is larger than the sum of its proper divisors (100045).

4100123 is a wasteful number, since it uses less digits than its factorization.

4100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100044.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 4100123 is about 2024.8760455890. The cubic root of 4100123 is about 160.0536668930.

Adding to 4100123 its reverse (3210014), we get a palindrome (7310137).

The spelling of 4100123 in words is "four million, one hundred thousand, one hundred twenty-three".